US 11,902,348 B2
Point cloud data transmission device, point cloud data transmission method, point cloud data reception device, and point cloud data reception method
Hyejung Hur, Seoul (KR); and Sejin Oh, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jun. 22, 2021, as Appl. No. 17/354,606.
Claims priority of provisional application 63/042,504, filed on Jun. 22, 2020.
Prior Publication US 2021/0400103 A1, Dec. 23, 2021
Int. Cl. G06F 15/16 (2006.01); H04L 65/70 (2022.01); G06T 9/40 (2006.01); G06T 9/00 (2006.01); H04L 67/10 (2022.01); H04L 65/75 (2022.01)
CPC H04L 65/70 (2022.05) [G06T 9/001 (2013.01); G06T 9/40 (2013.01); H04L 65/75 (2022.05); H04L 67/10 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for transmitting point cloud data, the method comprising:
encoding geometry data of point cloud data, wherein the encoding the geometry data includes:
predictive geometry encoding the geometry data based on a predictive tree,
wherein points of the geometry data are sorted based on a sorting type,
wherein the sorting type includes at least one of an azimuth angle order or a radial distance order, and
wherein the points are sorted by rounding the at least one of an azimuth or a radius;
encoding attribute data of point cloud data; and
transmitting a bitstream including the geometry data and the attribute data of the point cloud data.